What is black lava rock?
Black lava rock is a porous volcanic stone formed from solidified lava. It’s naturally lightweight yet rugged—making it a popular choice for soil aeration, top dressing, and even landscaping.
 
How it's made?
Formed from cooling basaltic lava during volcanic eruptions, black lava rock has a rough, open texture that enhances drainage and airflow. It is mined, cleaned, and graded for use in gardening and decorative applications.
Compared to red lava rock, black lava tends to be denser, slightly heavier, and less brittle. It’s great for mixing into soil or as a stable base in terrariums and potted plants.
 
Where it comes from?
Black lava rock is found in volcanic regions like Indonesia, Hawaii, Japan, and Iceland. Southeast Asian sources, especially Indonesia, are commonly used in plant mixes.
 
How it's used?
Ideal for succulents, bonsai, cactus soil mixes, and top dressing. It improves drainage while adding a clean, natural aesthetic.
 
Fun fact!
Black lava rock can absorb minimal moisture but allows air to flow freely—keeping roots dry and healthy, especially in humid environments.